RFD 26 add more info about volume references
RFD 26 add more info about volume references

melloc/rfd,davepacheco/rfd,melloc/rfd,davepacheco/rfd,joyent/rfd,davepacheco/rfd,joyent/rfd,davepacheco/rfd,davepacheco/rfd,joyent/rfd,melloc/rfd,joyent/rfd